Displaying items by tag: Filter

Nigeria: Lafarge Africa has installed a new bag filter at its 3.9Mt/yr Ewekoro cement plant in Ogun State. The filter cost US$8.51m. Lafarge Africa says that the equipment has successfully reduced the plant’s dust emissions to below 50mg/Nm³. The company said that it has made ‘significant adjustments’ to its production activities, besides introducing air quality measurement systems across a 10km radius of the plant.

Lafarge Africa’s head of health, safety and environment Rachael Ezembakwe said “Care for the environment and for our host communities is built into all aspects of our operations within the country. Our social impact is focused on the areas of the most need: education, empowerment, health and safety, and shelter/infrastructure.”

Türkiye: Italy-based CTP Team says it is currently installing a new waste heat recovery (WHR) system at Medcem Çimento’s Mersin plant. Its contribution to the construction of a new production line at the site includes installing an organic rankine cycle-based (ORC) 10.5Mwe WHR system and three new process fabric filters for the kiln and raw mill, coal mill and cement mills. The new line is expected to be commissioned in 2024.

US: Switzerland-based Elex has completed a cold start-up of an electrostatic precipitator (ESP) it has supplied to National Cement’s Ragland plant in Alabama. The ESP will be used for primary dedusting and it has a separation area of approximately 7000m². The cement plant, owned by France-based Vicat, is currently building a new 5000t/day production line that is due to be commissioned in mid-2022.

Egypt: Redecam says it has successfully started up a project one line two at Lafarge Egypt’s Ain Al-Sokhna cement plant. The upgrade consisted of: converting the main kiln’s electrostatic precipitator (ESP) into a bag filter; enhanced the cooling system for the clinker cooler, including a partial ESP retrofit; and revamping the bypass the gas conditioning tower and dust transport system. The Italy-based engineering company previously carried out a similar project on line three at the plant in 2020.

Russia: Sibirskiy Cement subsidiary Krasnoyarsk Cement says that it has installed a new electrostatic precipitator on Kiln 5 at its Krasnoyarsk cement plant as part of an environmental upgrade project. It spent US$3m on the equipment from Switzerland. It says that it has made ‘a significant contribution’ to the company’s goals under the Clean Air national project. The company has also installed an automatic emission control system at the plant.

The cement producer now plans to upgrade the plant’s primary limestone crushing equipment for US$203,000 and install a new automated measuring system for US$379,000. It has estimated that its full-year cement output in 2020 will increase by 2% year-on-year to 621,000t from 609,000t in 2019.

South Korea: All nine domestic cement producers and the Ministry of Environment have agreed on measures to reduce NO_x emissions. Asia Cement, Halla Cement, Hanil Cement Manufacturing, Hyundai Cement, Korea Cement, Sampyo Cement, Ssangyong Cement Industrial, SungShin Cement and Union Corporation have agreed to invest in upgrades to filters or new high-efficiency filters and process improvements, according to the Korea Times newspaper. There was also an agreement to set NO_x emissions reduction targets for the allocation of funding. The Korea Environmental Industry Technology Institute is investing US$2.93m in research towards developing methods of selective catalytic NO_x emissions reduction and selective non-catalytic NO_x emissions reduction.

The government aims to reduce national NO_x emissions by 20% to 155,000t/yr from 195,000t/yr through subsidies to emissions reduction technologies development and uptake. The cement sector presently emits 62,500t, 32% of the domestic total.

Philippines: Republic Cement plans to install bag filters on its clinker conveyors, cement mills and packaging lines at its Batangas and Teresa plants in 2019 to replace electrostatic precipitators. It follows the installation of kiln bag filters, according to the Business Mirror newspaper. Following the upgrade it reduced its dust emissions by 75% to 20mg/Nm³, below the national limit of 150mg/Nm³. The cement producer is also considering building concrete roads at its unit to further reduce dust emissions.

Algeria: The Aïn Touta Cement (SCIMAT) plant near Batna has spent US$10m on a new filter. The investment is part of a group of improvements intended to increase production at the unit in 2019, according to Le Courrier d'Algérie newspaper. The company is also implementing a new integrated administration system.

China: Anhui Conch’s Wuhu Conch subsidiary has installed bag filters on its Line 3 production line. Dust emissions are stable at 7 – 8mg/m³. The cement producer said that this was in full compliance with national emissions standards.

Malaysia: YTL Cement has awarded a turnkey project for air pollution control to Italy’s CTP Team. The project at the Perak-Hanjoong Simen cement plant in Pedang Rengas includes the conversion of an existing PL1 raw mill electrostatic precipitator (ESP) to a fabric filter and the upgrade of an existing exhaust fan.

The work includes converting an existing 740,000m³/hr ESP unit downstream of the kiln and raw mills of Line 1 to a bag filter. The conversion will abide to the current footprint on foundations with the minimum impact on steel structures, ducting and dust transport system. The new filter will reduce the emission limits below 10mg/Nm³ by June 2019. The intention is to meet new government regulations quickly. The unit will also be equipped with CTP’s SWAP technology for the cleaning of bags with low-pressure compressed air. CTP Team will work with local partner Shinco Industrial Equipment on the project. No value for the deal has been disclosed.